QtWebEngine crash (in Anki)

[birthstalker]

NOTE: After more testing, this is not firejail issue. Sorry.

I don't think it is related to Anki, but to QtWebEngine that Anki is using for its interface. Currently Firejail isn't having any rules for Anki, meaning it is running outside of the sandbox, but once the sandbox is enable for all supported softwares (using firecfg), Anki stops working. It works normally if I disable firejail.
I tried to remove chromium from /usr/local/bin/ but it seems not to relate to chromium.

OS: ArchLinux x86_64
Firejail version: 0.9.52-1 (official build)
Anki version: 2.1.0beta37-1 (official build)

Output:

$ anki
This is an BETA build - please do not package it up for Linux distributions
[0310/174548.761062:WARNING:stack_trace_posix.cc(648)] Failed to open file: /home/USERNAME/#8520856 (deleted)
  Error: No such file or directory
re../../../../qtwebengine-everywhere-src-5.10.1/src/3rdparty/chromium/sandbox/linux/seccomp-bpf-helpers/sigsys_handlers.cc:**CRASHING**:seccomp-bpf failure in syscall 0332
Received signal 11 SEGV_MAPERR 00000589c14c
#0 0x7f3002213e76 <unknown>
#1 0x7f3000e9188c <unknown>
#2 0x7f30022141ec <unknown>
#3 0x7f2fffd288e0 <unknown>
#4 0x7f3002ecdfd4 <unknown>
#5 0x7f3002ed5fd9 <unknown>
#6 0x7f2fffd288e0 <unknown>
#7 0x7f2fffde4879 syscall
#8 0x7f30002d2ee0 <unknown>
#9 0x7f300025d82d QFileInfo::isFile()
#10 0x7f30002889ed QStandardPaths::locate()
#11 0x7f30002be171 <unknown>
#12 0x7f30002bf8d2 <unknown>
#13 0x7f30002bb6ea QLoggingCategory::init()
#14 0x7f30002bb8cc QLoggingCategory::defaultCategory()
#15 0x7f300014283e <unknown>
#16 0x7f3000143794 QMessageLogger::warning()
#17 0x7f3000f043fd <unknown>
#18 0x7f3000f04be1 <unknown>
#19 0x7f3003e15523 <unknown>
#20 0x7f3003050fa4 <unknown>
#21 0x7f3002b42e03 <unknown>
#22 0x7f3002299c32 <unknown>
#23 0x7f30031b32bf <unknown>
#24 0x7f30031b40c6 <unknown>
#25 0x7f3002299c32 <unknown>
#26 0x7f3002231288 <unknown>
#27 0x7f3002232268 <unknown>
#28 0x7f30022326d3 <unknown>
#29 0x7f3002233a31 <unknown>
#30 0x7f3002251f6b <unknown>
#31 0x7f3003e327fb <unknown>
#32 0x7f30021dc76a <unknown>
#33 0x7f30021dca60 <unknown>
#34 0x7f3002edeb2e <unknown>
#35 0x7f30021db814 <unknown>
#36 0x7f3000ef229d QtWebEngine::processMain()
#37 0x557a6dcdc985 <unknown>
#38 0x7f2fffd14f4a __libc_start_main
#39 0x557a6dcdc9da <unknown>
  r8: 000000000000c0c0  r9: 00007fff89630800 r10: 00007fff896307e0 r11: 00007fff896307c0
 r12: 00007fff89630884 r13: 00007fff89630980 r14: 00007fff896308c0 r15: 0000557a6dfb7260
  di: 0000000000000001  si: 00007fff89630740  bp: 00007fff896308c0  bx: 000000000000014c
  dx: 0000000005800000  ax: 000000000589c14c  cx: c0c0c0c000000000  sp: 00007fff89630880
  ip: 00007f3002ecdfd4 efl: 0000000000010202 cgf: 002b000000000033 erf: 0000000000000006
 trp: 000000000000000e msk: 0000000000000000 cr2: 000000000589c14c
[end of stack trace]
Calling _exit(1). Core file will not be generated.

If there is any way to gather more logs or information, please let me know. Thank you.